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Braincasts of Phenacodus, Notostylops, and Rhyphodon. American Museum novitates ; no.622

Simpson, George Gaylord, 1902-; Scarritt Patagonian Expedition 1930-1931) (New York City : The American Museum of Natural History, 1933)
Skulls and brains of some mammals from the Notostylops beds of Patagonia. American Museum novitates ; no.578

Simpson, George Gaylord, 1902-; Scarritt Patagonian Expedition 1930-1931) (New York City : The American Museum of Natural History, 1932)
Braincasts of two typotheres and a litoptern. American Museum novitates ; no.629

Simpson, George Gaylord, 1902-; Brown, Barnum.; Scarritt Patagonian Expedition 1930-1931) (New York City : The American Museum of Natural History, 1933)